Require strong authentication after a timeout

Bug: 21594472
Change-Id: Iab169d4fa2e4ad134f8c8579654b28e96b5b1385
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/UnlockMethodCache.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/UnlockMethodCache.java
index bd537f7..d646d0d 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/UnlockMethodCache.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/UnlockMethodCache.java
@@ -143,6 +143,11 @@
         public void onFaceUnlockStateChanged(boolean running, int userId) {
             update(false /* updateAlways */);
         }
+
+        @Override
+        public void onStrongAuthTimeoutExpiredChanged(int userId) {
+            update(false /* updateAlways */);
+        }
     };
 
     public boolean isTrustManaged() {